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  <title>返回已注册的哈希算法列表</title>
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  <div id="layout-content"><div id="function.hash-algos" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">hash_algos</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.2, PHP 7, PECL hash &gt;= 1.1)</p><p class="refpurpose"><span class="refname">hash_algos</span> &mdash; <span class="dc-title">返回已注册的哈希算法列表</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.hash-algos-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>hash_algos</strong></span>
    ( <span class="methodparam">void</span>
   ) : <span class="type">array</span></div>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.hash-algos-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   返回一个数值索引的数组，
   包含了受支持的哈希算法名称。
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.hash-algos-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>7.1.0</td>
       <td>
        加入 sha512/224，sha512/256，sha3-224，sha3-256，sha3-384 以及
        sha3-512 算法的支持。
       </td>
      </tr>

      <tr>
       <td>5.6.0</td>
       <td>
        加入对 gost-crypto 算法的支持。
        参照 <a href="http://www.faqs.org/rfcs/rfc4357" class="link external">&raquo;&nbsp;RFC 4357，11.2 小节</a> 
        定义的 CryptoPro S-box 表格实现 GOST 哈希函数。
       </td>
      </tr>

      <tr>
       <td>5.4.0</td>
       <td>加入对于 joaat，fnv132 和 fnv164 算法的支持。移除 Salsa10 和 Salsa20 算法。</td>
      </tr>

      <tr>
       <td>5.3.0</td>
       <td>加入对 md2，ripemd256，ripemd320，salsa10，salsa20，snefru256 和 sha224 哈希算法的支持。</td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>

 
 <div class="refsect1 examples" id="refsect1-function.hash-algos-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-888">
    <p><strong>Example #1 <span class="function"><strong>hash_algos()</strong></span> 例程</strong></p>
    <div class="example-contents"><p>
     在 PHP 5.6.0 中，<span class="function"><strong>hash_algos()</strong></span> 
     会返回下表所示的算法清单：
    </p></div>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">hash_algos</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [0] =&gt; md2
    [1] =&gt; md4
    [2] =&gt; md5
    [3] =&gt; sha1
    [4] =&gt; sha224
    [5] =&gt; sha256
    [6] =&gt; sha384
    [7] =&gt; sha512
    [8] =&gt; ripemd128
    [9] =&gt; ripemd160
    [10] =&gt; ripemd256
    [11] =&gt; ripemd320
    [12] =&gt; whirlpool
    [13] =&gt; tiger128,3
    [14] =&gt; tiger160,3
    [15] =&gt; tiger192,3
    [16] =&gt; tiger128,4
    [17] =&gt; tiger160,4
    [18] =&gt; tiger192,4
    [19] =&gt; snefru
    [20] =&gt; snefru256
    [21] =&gt; gost
    [22] =&gt; gost-crypto
    [23] =&gt; adler32
    [24] =&gt; crc32
    [25] =&gt; crc32b
    [26] =&gt; fnv132
    [27] =&gt; fnv1a32
    [28] =&gt; fnv164
    [29] =&gt; fnv1a64
    [30] =&gt; joaat
    [31] =&gt; haval128,3
    [32] =&gt; haval160,3
    [33] =&gt; haval192,3
    [34] =&gt; haval224,3
    [35] =&gt; haval256,3
    [36] =&gt; haval128,4
    [37] =&gt; haval160,4
    [38] =&gt; haval192,4
    [39] =&gt; haval224,4
    [40] =&gt; haval256,4
    [41] =&gt; haval128,5
    [42] =&gt; haval160,5
    [43] =&gt; haval192,5
    [44] =&gt; haval224,5
    [45] =&gt; haval256,5
)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.hash-algos-seealso">
  <h3 class="title">参见</h3>
  <ul class="simplelist">
   <li class="member"><span class="function"><a href="hash_hmac_algos.html" class="function" rel="rdfs-seeAlso">hash_hmac_algos()</a> - Return a list of registered hashing algorithms suitable for hash_hmac</span></li>
  </ul>
 </div>

 
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